Proterozoic (2500 Ma)
Torna a cronostratigrafiaRappresentazione e statuto
- Colore CMYK
- 0/80/35/0 (Commission for the Geological Map of the World)
- Colore RGB
- R: 247 G: 53 B: 99
- Rango
- Eon cronostratigrafico
- Uso
- Unità in uso.
- Status
- termine formale valido
Nomenclatura
- Deutsch
- Proterozoikum
- Français
- Protérozoïque
- Italiano
- Proterozoico
- English
- Proterozoic (2500 Ma)
- Varianti storiche
- Azoïque, Erdurzeit, Proterozoic (Chamberlain & Salisbury 1906), Eozoikum = Frühzeit (Roesli 1948)
Gerarchia e successione
- Unità di rango inferiore
- Unità sovrastante
Età
- Geomorfologia
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- Proterozoico
- Età alla base
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- Proterozoico
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Neoproterozoic (1000 Ma)
- Rango
- cronostratigrafia
- Statuto
- valido
- In breve
- Last era of the Proterozoic.
- Age
- Proterozoico
-
Ediacaran (~ 635 Ma)
- Name Origin
-
Named after the Ediacara Hills (South Australia).
- Rango
- Periodo cronostratigrafico
- Statuto
- valido
- In breve
- Last period of the Neoproterozoic (ca. 635-541 Ma), with a peculiar soft-bodied fauna.
- Age
- Neoproterozoic (= Late Proterozoic)
-
Cryogenian (~ 720 Ma)
- Name Origin
-
From krýos and génesis (Greek), meaning "cold" resp. "birth".
- Rango
- cronostratigrafia
- Statuto
- valido
- In breve
- Middle period of the Neoproterozoic, characterised by cold climatic conditions («Snowball Earth» ; Sturtian and Marinoan glaciations). Its base has been defined chronometrically.
- Age
- Neoproterozoic (= Late Proterozoic)
-
Tonian (1000 Ma)
- Name Origin
-
From tóno (Greek), meaning "stretch".
- Rango
- cronostratigrafia
- Statuto
- valido
- In breve
- First period of the Neoproterozoic. Its base has been defined chronometrically.
- Age
- Neoproterozoic (= Late Proterozoic)
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Mesoproterozoic (1600 Ma)
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Stenian (1200 Ma)
- Name Origin
-
From stenós (Greek), meaning "narrow".
- Rango
- cronostratigrafia
- Statuto
- valido
- In breve
- Last period of the Mesoproterozoic, during which the supercontinent Rodinia assembled. Its base has been defined chronometrically.
- Age
- Mesoproterozoic (= Middle Proterozoic)
-
Ectasian (1400 Ma)
- Name Origin
-
From éktasis (Greek), meaning "extension".
- Rango
- cronostratigrafia
- Statuto
- valido
- In breve
- Second period of the Mesoproterozoic. Its base has been defined chronometrically.
- Age
- Mesoproterozoic (= Middle Proterozoic)
-
Calymmian (1600 Ma)
- Name Origin
-
From kálymma (Greek), meaning "cover".
- Rango
- cronostratigrafia
- Statuto
- valido
- In breve
-
First period of the Mesoproterozoic. Its base has been defined chronometrically.
- Age
- Mesoproterozoic (= Middle Proterozoic)
-
-
Paleoproterozoic (2500 Ma)
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Statherian (1800 Ma)
- Name Origin
-
From statherós (Greek), meaning "stable, firm".
- Rango
- cronostratigrafia
- Statuto
- valido
- In breve
- Last period of the Paleoproterozoic. Its base has been defined chronometrically.
- Age
- Paleoproterozoic (= Early Proterozoic)
-
Orosirian (2050 Ma)
- Name Origin
-
From oroseirá (Greek), meaning "mountain range".
- Rango
- cronostratigrafia
- Statuto
- valido
- In breve
-
Third period of the Paleoproterozoic. Its base has been defined chronometrically.
- Age
- Paleoproterozoic (= Early Proterozoic)
-
Rhyacian (2300 Ma)
- Name Origin
-
From rhýax (Greek), meaning "stream of lava".
- Rango
- cronostratigrafia
- Statuto
- valido
- In breve
- Second period of the Paleoproterozoic : Bushveld Igneous Complex, Huronian (Makganyene) global glaciation. Its base has been defined chronometrically.
- Age
- Paleoproterozoic (= Early Proterozoic)
-
Siderian (2500 Ma)
- Name Origin
-
From sídēros (Greek), meaning "iron".
- Rango
- cronostratigrafia
- Statuto
- valido
- In breve
- First period of the Paleoproterozoic, characterised by a peak in the deposition of banded iron formations (BIFs). Its base has been defined chronometrically.
- Age
- Paleoproterozoic (= Early Proterozoic)
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